Door operated oven rack structure



Oct. l0, 1950 J. K. BEYNON Erm.

nooR OPERATED ovEN RACK STRUCTURE 3 Sheets-Sheet l;

Filed May 25, 1947 I nventorq' WW 19. mm

and

ocf. Ho, leso Filed May 25, 1947 J. 1K. BEYNON ETAL l nook OPERATED ovENRACK STRUCTURE 3 Sheets-Sheet 2 Inventum John K. Beynon Donald K. BeynonRoss L. Beynon @du l0, 1950 J, K, BEYNON -El AL 2,525,201

DOOR OPERTED OVEN RACK STRUCTURE Filed May 23, '1947 3 Sheets-Sheet 3 lwlw nu a""g .Sv

Inventors John K. Beynon Donald K. Beynon Ross L. Beynon Mmeys PatentedOct. 10, `195,()

DOOR OPERATED OVEN RACK STRUCTURE John K. vBeynon, lllonald K. Beynon,-and Ross v.

Beynon, Chicago, Ill. l

Application May 23, 1947, Serial No. 750,152 K 4 Claims. (Cl. 126-340) lThis invention relates to improvements in roll-rise ovens.

An object of the invention is to provide an improved form of baking ovenconstruction for cooking stoves which will provide means for ele-Vvating the oven racks or shelves after the same have been withdrawn fromthe inside of the oven by means of suitable linkage and levers connectedto the oven door.

Another object of the invention is to provide an improved rack or shelfconstruction for baking ovens of cooking stoves, the same being mountedupon rollers and operable in trackways disposed at the opposite sides ofthe oven, and

hingedly connected to the oven door with linkage connected between saidoven door and the oven racks or shelves whereby the same may be rpulledto a position completely without the oven, `and when the oven door islowered, said racks or shelves will be automatically elevated tofacilitate the placing of utensils thereon or for removing utensilstherefrom.

A further object of the invention is to provide an automaticallyoperable elevating oven rack or shelf construction which will beautomatically raised when the rack or shelf is fully withdrawn from theoven, and which will be automatically lowered immediately prior to therolling of the rack or Vtray to a position withinA the oven and theclosing of the oven door.

Another object of the invention is to provide an improved form ofroll-rise oven having a rack or shelf operable automatically uponwithdrawal from the oven to move to an elevated position,

and operable automatically to return to its-` lowered position with itsmovement toward its position within the oven, said'construction beinghighly efficient in operation and relatively inexpensive to manufactureandproduce.

Other objects will appear-as the description proceeds.

In the accompanying drawings which form a part of this application: y

Figure l is a sectional view through a stove oven showing the improvedelevating rack ori shelf in side elevation andfully housed within theoven;

Figure 2 is 'a sectional view taken on the line 2-2 of Figure l;

Figure is a similar View to Figure 1, but showing the improved racks orshelves fully withdrawn from the oven and in raised or elevatedposition;

Figure Vl is a plan view looking down ulpon the improved rack or shelfconstruction showing the same fully withdrawn from the oven which isshown in section;

Figure 5 is `an elevational view of a the inside lower end of the ovendoor;

vFigure 6 is a view-taken ontne line G-'of Figure 4; v

Figure4 7 Vis a detail vertical-sectional View through the adjacenthinged ends of the oven portion of `door and rack or shelf supportingslide showing the latch in secured position, and Figure 8 is an enlargedsectional detail vie taken on the line 8 8 of Figure 6.

Like characters of reference are used throughout the followingspeciication and the accompanying drawings to designate correspondingparts.

In carrying out the invention, there is pro- Yvided a stove baking ovengenerally designated by the reference numeral I, having a back wall 2,opposite side walls 3 and 4, and a bottom 5 having integral dependingattaching flanges for securing the same in theoven I.

A pair of oppositely disposed U-shape channel track members l and 8 aresecured to the opposite side walls of the oven I, being supported uponthe bottom 5 and ospen on their inner sides.

A U-shape slide member 9 of approximately the same length and width asthe oven I is formed with inwardly'extending longitudinal side channelsIll and II, and with the depending oppositely disposed ears I 2 and I3upon which the rollers Ill and lli are rotatably supported on stubshafts I6 and Il respectively Vfor longitudinal movement in the channeltrack members `I and 8.

The front end of the slide member 9 is formed with an inwardly extendingwall I8 which is provided with the transversely extending spaced hingebarras I9, which interengage and cooperate with similar alignable hingebarrels 2i? formed on the lower edge of the oven door 2i. A hinge pintle22 will be placed through the aligned hinge barrels I9 and 2li tocomplete the hinge construction for the oven door 2|.

The handle for the oven door 2i comprises a xed upper portion 22substantially inverted U- shape in cross section, and-a lower portion 23of substantially U-shape in cross section and slida-V l ble within saidupper portion 22 and normally heldin extended' position by means of thetwo parallel coil springs 2li disposed within the handle between saidportions 22 and 23. An operating rod 25 is pivoted intermediate its endson the pivot pin 26 in the oven door 2 i with its outer end slidablyreceived through the slot 2l in the fixed handle [portion 22 forengagement by the slidable lower handle portion 23, while the inner endof rod 25 is connected to one end of the link 28 which is pivotallymounted upon a bearing pin 29 in the oven door 2|. The inner end of thelink 28 is pivotally connected at 39 with one end of an elongated latchbar 3| disposed in a channel 32 in the oven door 2|. The opposite end ofthe bar 3| is receivable within the latch receiving well or socket 33formed in the transverse front wall I8 of the slide member 9 when saiddoor 2| is in closed position.

Spaced upwardly extending supporting ears 34 e v and 35 are formed uponthe opposite sides of the u-shape slide member 9, and pivotally sulpportthe links 36 and 31 on the pivot pins 38 and 39. Connecting rods 49 and4| are pivotally connected to the upper or outer ends of the links 36and 31 on the pivot pins 42 and 43. Links 44 and 45 are pivotallysupported on the pivot pins 42 and 43 at their lower ends, and arepivotally supported upon the laterally extending Lpivot pins 46 and 41on the oppositely disposed U-shape slide guides or rack guides 48 and49.

Vertically extending frame members 50 and 5| are secured to the slideguides 48 and 49, and support the oppositely disposed U-shapedr slideguides or rack guides 52 and 53 at their upper ends.

Longitudinally spaced vertical standards or frame members 54 and 55 arexed to the opposite sides of the slide member 9, and are verticallyslotted as at 56 and 51 to slidably receive connecting bolts or lpins 58and 59 which are xed to and supported bythe lower ends of the uppervertical frame members 5|) and 5|.

Oppositely disposed forwardly extending slide guide elevating andlowering arms 6u and 6| are pivotally supported upon the pivot pins 43,and terminate at their forward endsin hook members 62 and 63. These hookmembers 62 and 63 vare adapted to engage laterally extending headed pins64 and 65 formed upon the upper ends of weighted latch members 66 and61. The |pins 64 and 65 are slidably disposed in slots 68 and69 formedin the side edges of the oven door 2| adljacent the hinged end thereof.

` ceived within the longitudinally extending spaced concentricallydisposed guide tubes 14 and 15 ,which are suitably xed to the ovenbottom 5.

It will thus be understood that when the oven lrack or shelves arewithdrawn from the oven,

they will be supported and guided by the guide .rods and guide tubesjust described.

From the foregoing description, it will be aplparent that the mode ofoperation of the improved roll-rise oven will be as follows: assumingthat the oven door 2| is closed, and that it is desired to withdraw therack or shelves from the oven the handle 22 will be grasped withoutcompressing the portion 23 thereof, and the slide member 9 with itsinterconnected parts may then be withdrawn from the oven upon the guiderods 19 and 1|, and the telescoping guide tubes 13 andV 14, and and 16,said tubes being arranged concentrically about the guide rods 10 and 1I.

vWhen the slide member 9 is fully on the outside of the oven I, thehandle portion 23 will be compressed towards the handle portion'22,thereby releasing the latch bar 3| from its socket 33. With the latchbar released, the oven door 2| t may be lowered from its verticalposition to its horizontal position, pivoting upon the hinge pintle 22connecting the aligned hinge barrels |9 and 20.

As the oven door 2| swings downwardly, the headed pins 64 and 65 willdrop downwardly in the slots 68 and 69, the lower ends of the latchmembers 66 and 61 being released from contact with the sides of theslide member 9, whereupon the hook ends 62 and 63 will engage the pins64 and 65 straightening out the linkage connected to the slide guides 48and 49, thereby raising the same to the position shown in Figure 3 ofthe drawings, in order that food containers may be more readily placedupon and removed from the trays or racks (not shown) supported in saidslide guides 48 and 49.

In order to lower the slide guides, the oven door 2| will be raised toits vertical position and automatically latched. The slide member 9 thenmay be pushed into the interior of the oven and the door 2| closed.

From the foregoing description, it will be apparent that there has beendevised and provided a highly eiicient form of roll-rise oven which willbe relatively inexpensive to manufacture and produce.

While a preferred embodiment of the instant invention has beenillustrated and described, it will be understood that it is not intendedto limit the scope of the invention thereto, as many minor changes indetail of construction may be restored to without departure from thespirit of the invention.

Having described the claimed as new is:

1. In an oven having an open front, a slide member mounted in the ovento move into and out of said oven through the open front thereof,movable slide guides mounted on said slide member to move toward andaway from said slide member in parallel relation thereto, a door hingedto the front end of the slide member to move in an arc from an ovenfront closing position perpendicular to the slide member to an ovenfront opening position parallel with the slide member, linkage connectedto the slide guides and to the door to move the slide guides away fromthe slide member as the door is moved from its perpendicular position toits parallel position, a latch carried by the-door and cooperating withthe slide member to retain' the door in its perpendicular position, ahandle on the door and invention, what is latch control means on thehandle for releasing 55 said latch.

2. In a baking oven having an open front, a slide member mounted in saidoven to move into and out of said oven through the open front thereof, aplurality of vertically disposed frame members fixed to and rising fromsaid slide member, a plurality of vertically spaced horizontallydisposed rack guides, further frame members joining said rack guides,said first-named frame members having vertical slots therein, pinsprojecting laterally from said further frame members and slidablyreceived in said vertical slots, a door hinged at its lower edge to saidslide member for vertical swinging movement, a group of links terminallypivoted to said rack guides and said slide member, connectingrodsrjoining the links of each group of links, rack guide elevating andlowering arms pivoted to said connecting rods and having terminal hooks,means slidably carried by said door receiving said terminal hooks upondownward swinging movement of the -ed pins and weighted latch memberscarried by said headed pins.

4. In a baking oven having an open front, a`

slide member mounted in the oven to move into and out of said oventhrough the open front thereof, vertically movable rack guides mountedon said slide member, a door, hinges securing the door to the front endof said slide member whereby said door is swingable to close the openfront of the oven when the slide member is wholly within the oven, andlinkage carried by said slide member and connected to said door forraising said rack guides as said door is moved about the hinges to openposition, said linkage including links terminally pivoted to said rackguides and to said slide member, rack guide elevating and lowering armspivoted to said links and hav'- ing terminal hooks, slidable pins.carried by said door, and weighted latch members mounted on said pinsfor urging said pins into engagement with said terminal hooks upondownward swinging movement of said door about the hinges.

JOHN K. BEYNON. DONALD K. BEYNON. ROSS L. BEYNON.

REFERENCES CITED The following references are of record in the le Yofthis patent:

UNITED STATES PATENTS Number Name Date 1,429,870 yGussa Sept. 19, 19221,851,854 Lindemann et al. Mar. 29, 1932 2,028,636 Wilkinson et a1. Jan.21, 1936 2,088,719 Pierson Aug. 3, 1937 2,106,506 Pletcher et al Jan.`25, 1938 2,204,381 Reeves June 11, 1940 2,224,164 Sherman et al Dec. 10,1940

